The first SP song I heard was Testure 12 inch version from the 12 inch anthology. I remember hearing about SP through an article of NIN and how Trent ripped off Dig It. I for some reason didn't even look up Dig It and just looked up SP and listened to Testure and it blew my mind. That's when I got into them. Downloaded the whole discography. Singles and all.
I don't really have a story similar to your Second Opinion one, however I can tell you that when I started smoking weed which was in late May, in mid June smoking with my friends, I decided to listen to my own music since they have shitty taste in music besides me and one other friend, and they like to listen to half a damn song and change it.